Rotary engine.



C. R. ELIASON.

ROTARY ENGINE.

APPLICATION FILED JAN- 10. 1916.

1,2]. 1,563.. Patented Jan. 9, 1917.

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C. R. ELIASON.

ROTARY ENGINE.

APPLICATION FILED JAN. 10, I916.

Patented Jan. 9, 1917.

3 SHEETS-SHEET 2- Imus/wan C. R. ELIASON.

v ROTARY ENGINE. APPLICATION FILED MN. 10. i916.

1,21 1,563,, Patented Jan. 9, 1917.

3 SHEETS-SHEET 3- TTNTTED TATE CARL ROBERT ELIASON, or WETASKIWIN, ALBERTA, CANADA.

ROTARY ENGINE.

Application filed January 10, 1916.

To all whom it may concern Be it known that I, CARL Rosnnr ELIASON,

a subject of the King of Great Britain, and

the invention are to more advantageously utilize the expansion of the motive fluid, thereby obtaining a maximum efflciency, to

render the engine compact in construction so occupying a mlnimum of space and generally to adapt the several parts to better perform the functions required of them.

lVith the above objects in view the invention consists essentially of the improved construction particularly described and set forth in the following specification and accompanying drawings forming part of the same.

In the drawings, Figure 1 is a perspective view of the improved engine. Fig. 2 is a front elevation of the same, the casing being in section. Fig. 8 is a transverse section of the casing and rotor. Fig; 4 is an elevation of one of the rotor flanges. Fig. 5 is a transverse section of the rotor. Fig. 6 is a perspective view of the rotor, one of the flanges being removed to show the vanes and connecting rod. Fig. 7 isa front elevation of the rotor. Fig. 8 is a transverse section of one 'ofthe propelling vanes.

Like characters of reference refer to like parts in the several figures.

Referring to the drawings, A represents the improved engine comprising the rotor 10- mounted on the shaft 11 rotatably engaging with a non-rotatable casing 12 which is provided with a flanged base designed to engage with a suitable foundation. This shaft also rotatably engages with the bearings 13 and is provided with the usual fly wheel 12 and driving pulley l3 suitably mounted thereon.

The rotor 10 is provided on diametrically opposite sides with longitudinally extending peripheral ports 14 located adjacent to the longitudinally extending peripheral pockets 15 and separated therefrom by the projections 16 on which the curvilinear vanes 17 are pivotally mounted intermediate of their breadth. The ports 14 are provided on that Specification of Letters Patent.

Patented Jan. 9, 1917.

Serial No. 71,219.

side remote from the projections 16 with an overhanging tongue 18 having a recessed outer face with which the vanes 17 are adapted to engage in a manner to be made clear hereafter.

In the embodiment illustrated the vanes 17 are operatively connected by the rods 19 which embrace the shaft 11 intermediate of their ends, the function of the rods being" to permit of the vanes being simultaneously operated so that when one is radially disposed the other is closed over the adjacent port 14 and forms part of. the periphery of the rotor.

To facilitate in positioning the connecting rod 19 the rotor 10 is constructed withremovable end flanges 20, the'saidrods being housed in transversely'extending recesses 21 formed in the ends of the rotor. These flanges are provided with inlet ports 22 designed to register with the ports 14 in the rotor 10, the flanges being further provided with recesses in their periphery in which the resilient metallic rings 23 are located, thereby forming a steam tight'joi'nt betweenthe flanges and the inner periphery of the casing. The casing 12 alsocarries on its inner periphery integral V-shaped projections 24 located between the flanges 2O opposite each other and forming with the'rotor an expansion space which issubtendedby'the maj'or arc of the casing, the said projections being formed with transversely extending slots 25 in the apex thereof in which the radially dis' posed vanes 26 are slidably mounted. p

The vanes 26'ar'e adapted to benormally pressed into engagement with the periphery of the rotor 10 and to this end spiral springs 27 are located in the slots 25 and adapted to coact with the inner end of the said vanes.

Steam is admitted through the pipes 28 to the steam chests 28 which are of curvilinear formation and located at both ends of the casing 10 near the top thereof thereby obviating end thrust on the rotor and shaft, While the exhaust steam from the engine is amply taken care of by the exhaust port 29 formed in the periphery of the casing adjacent to the lower V-shaped projection.

It will of course be understood that the inner walls of the steam chests 28 are open so that they will register with the ports 22 in the flanges 20 during the rotation of the rotor 10 and permit of an adequate supply of steam being delivered to the ports 14.

It is advisable that the contact of the periphery'of the vanes 17 with the casing 12 should be steam tight and to facilitate in obtaining this result I preferably provide recesses 17 extending around the periphery of the said vanes in which the auxiliary vanes 18 are slidably mounted, the said auxiliary vanes being designed to be pressed outwardly under the action of the spiral spring 19*.

The assembly of the engine will be readily understood from the foregoing description.

In the operation of the engine the steam is supplied to the pipes 28 from any suitable source and delivered through the steam chests 28 to the inlet ports 22 registering with the ports 14 thereby rotating the vane 17 upwardly about its pivotal point to engage the innerperiphery of the casing 12 and simultaneously closing the lower vane 17 on its adjacent port in which position there is no liability of the lower vane 26 fouling with the rotor in any way.

It Will be readily understood that the steam on entering the expansion chamber formed between the upper vanes 17 and the V-shaped projections 24 of the casing expands and exerts a propelling force on the inner face of the curvilinear vane 17 thereby rotating the rotor in an anti-clockwise direction.

As the rotor continues in its operation it will be clear that the lower vane 17 is always rotated to form a part of the rotor before it engages with the radially disposed vane 26 mounted in the lower V-shaped projection 24 and that this operation is performed simultaneously with the rotation of the upper vane 17 into its operative position on which the steam entering the engine will act to bring about the necessary propulsion or rotary motion.

The function of the radially disposed vanes 26 is to make a steam tight connection between the rotor and the casing while they are of such a size that they are capable of being radially displaced and not liable to foul with the rotor during the normal operation of the engine. Again, the flanges 20 are of the detachable type and may be secured to the rotor 10 in several different ways such as will commend themselves to the manufacturer.

As many changes could be' made in the above construction and many apparently widely different embodiments of my invention, within the scope of the claim, constructed without departing from the spirit or scope thereof, it is intended that all matter contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limiting sense.

What I claim as my invention is:

In a rotary engine and in combination, a casing, a rotor rotatably mounted therein and forming therewith an expansion chamher and provided with peripheral pockets and rectangular ports located behind the said pockets and adjacent thereto, said ports being provided with a recessed wall partially overhanging the outer end thereof, curvilinear vanes pivotally mounted intermediate of their length between the peripheral pockets and ports and adapted'when closed to bridge the same, means for admitting motive fluid to the ports during each cycle of the rotor, and means connecting diametrically opposite curvilinear vanes adapted to close one of the vanes when the other is opened under the influence of the motive fluid.

In witness whereof I have hereunto set my hand in the resence of two witnesses. OAR ROBERT ELIASON. Witnesses:

New B. ANDERSON, CARL WICK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O." I. 

